Nigerian teacher Mohammed Bah Abba was motivated by his concern for the rural poor and by his interest in indigenous African technology to seek a practical, local solution to these problems. His extremely simple and inexpensive earthenware "pot-in-pot" cooling device, based on a principle of physics already known in ancient Egypt, has revolutionized lives in this semi-desert area.
Watch more ROLEX AWARDS films at vimeo.com/groups/rolexawards
Loading more stuff…
Hmm…it looks like things are taking a while to load. Try again?